Improvement in stoves



3 Sheets-Sheetl.

R. EICKEMEYER.

ST'OVE.

Pastented July 1,1876.

Nif

NVPETEHS. PNOTO-LITHDGRAFHER. WASNNGTON. D. C.

a sheets-sheet 3.

.-R. EICKEMEYER. STovE.

Patented u1y-11, 187.6..

faim? Maf/Lw UNITED STATES PATENT RUDOLF EICKEMEYER, .OF YONKERS, NEW YORK.

IMPROVEMENT' iN sTovEs.

Specification forming part of Letters Patent No. 179,776, dated July 11, 1876 application tiled -I May 25,1876.

1 0 all ywhom 'it may concern:

Be it known that I, RUDOLF EICKEMEYER, of Yonkers, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Stoves for Cooking and Heating; and I do hereby declare that the following specification, taken in connection with the drawings furnished and forming a part of the same, is a clear, true, and complete description thereof.

I have sought, through vmy improvements, a maximum utility, coupled with a minimum consumption, of fuel 5 and I have therefore devoted my'attention not only to a complete control and utilization of the products of combustion after they have left the fire-pot, but also to a complete control and adjustment of the lire-pot itself.

lhe main feature of my invention consists in acook'stove and heater, embodyingin combination a lire-pot or combustionchamber, an oven, an air-heating chamber, t-wo independent ducts, one of which is an interior dnctor flue, and the other an exterior duct, arranged to communicate with each other and with the fire-pot, and each ot' wh-ich communicates with a smoke-pipe by means of an independent passage, a damper for controlling the exit of the lire-pot at its junction with the two ducts, and a damper l'or cont-rolling the exit of the interior duct at the smoke-pipe, whereby at will the combustion-chamber and lthe smokepipe may be placed into communication by the way of the interior duct and the exterior duct, or only by way of the interior duct, or a portion thereof.

A stove constructed in accordance with this portion of my invention may be used for boiling and broiling with a practically-direct discharge y ot' the products of combustion into the smokepipe after they have traversedonlya small portion of the interior duct. Then required, also, for baking purposes the product-s of combustion traverse the interior duct on three sides of the oven, and, when required for all of these purposes, and also for heating, or for heating alone, the products of combustion traverse the exterior duct either after having made the entire circuit of the interior duct,or they may Y be wholly excluded from said duct. A

Another feature of' my invention consists iu embodying in a cook-stove the combination, with a fire-pot, an oven, an interior duct next to the oven, and an exterior duct, of a water coil or chamber located in the exterior duct.

Itis well known that when the watervooil is in the fire-pot a large body of burning` fuel is always requisite, even for ordinary purposes, because ot' the deadening effect of the coil, and that when the coil is located between the re-pot and oven the he tingof the latter at the adjacent side is effected with difficulty.

In my improved stove the water-coil is l0- cated neither in the tire-pot, nor between it and the oven. but isv located in the exterior duct, so that heat is applied thereto only after it has traversed the in terior or oven-beati ing duct.

Another feature of my invention consists in a V-shaped lire-pot, provided with a grate which constitutes an inclinedtfront thereof, and which can be moved to and froheropposite inclined back of the pot, so that when clinkers and stones gravitate to the grate-surface at the lower narrow portion of the lirepot the grate can be moved so as to afford an opening through which clinkers may be freely discharged, and also whereby a free combustion of fuel is attained. v

My invention further consists in a solid grate plate provided with bars,in combination I with a tire-pot, and arranged so that the grate plate may be moved across the bottom ofthe lire-pot, and made to wholly close the same, or alford any desired area of grate-surface.

My stove is providedwith a grate-plate mounted in slidebearings, a rack on the plate, a pinion, shaft, and crank for op'eratin the grate; ai1d my invention also consists in the combination, with the crank, ofa dial-platefbr conveniencein adjustment; and,still further, in providing the crank with a stop-pawl for securing the grate in any desired position.

My invention further consists in the combination, with the air-heating chamber ot' a cook-stove and heater, of a vapor pan or reservoir, provided with a feeding-aperture and a recess in its bottom guarded by a trap-plate, which extends into the recess below the line of the bottom of the pan, whereby the pan is readily supplied with wat-er, and the fumes of the kitchen prevented from entering the airchamber.

The recess in the bottom of ther pan will retain sufficient water to keep the trap closed, even after the water in the main portion of the pan has been wholly exhausted.

To more particularly describe myinvention l will refer to the accompanying three sheets of drawings, in whichf Figure l, Sheet 1, represents in side elevar tion one ol' my improved stoves. Fig. 2 represents the same in longitudinal central vertical section as it' charged with fuel, and arranged for cooking in all its branches, and for heating air. Fig. 3, Sheet L', represents the same as in Fig. 2 arranged for cooking only. Fig. 4 represents the stove in front elevation. Fig. 5 represents the grate detached as if viewed from its lower side. Fig. 6 represents the grate in end view, with its slide bearings and the gearing by which it is operated "and adjusted. Fig. 7, Sheet 3, represents in section a set range embodying my improvements. Fig. 8 represents the same in top view.

A denotes a hollow bed-plate, upon which the stove is mounted. lts-interior constitutes a hot-air chamber, H, and it is provided with an induction-aperture, as at a., for the entrance of air supplied from a suitable cold-air flue. An upright portion of the hot-air chamber, as at b, at the rear of the stove, communicates with the interior ofthe bed-plate at the bottom. At the top the chamber maybe connected with a liue leading to an upper apartment to be heated, or it may discharge the heated air into the room containing the stove, if the heat be there required. The bed-plate is cast with an open top, as indicated in Fig. 2, and its interior is separated from the iues ofthe stove by a thin heating-sheet, as at c, which extends from the front ot" the stove at its bottom to the rear, thence upward,I thus forming the top and side of the airhea-ting chamber, with which the air, while passing through the'chamber is in direct contact. The sides of the stove at B are mounted upon the base-plate, and they support the top and the several interior portions of the stove. The front end d and back end c are also mounted on the bed-plate and secured to the side. (J denotes the repot or combustion-chamloer with an entrance at the front end of the stove near the top` having a tight door or cover, as at f. It is `inclined inward and downward, and for a portion of its length is provided with an upper side, hs at g, which renders said portion of the fire-pot a magazine, in the upper portion of which fuel will remain intact, and from which the grate may7 be continuousl)7 supplied. The back ofthe fire-pot is formed ot'a cast-iron plate, as at h, which is inclined upward and toward the rear, and this may o1' may not be protected with brick or other lining. The sides ofthe fire-pot at lr' are vertical, and parallel with the side plates B, and

the spaces intervening constitute passages or ilues for the exit of the smoke and gases to the smoke pipe under certain circumstances hereafter described. The iire-pot has, therefore, two sloping sides and two vertical sides, which enables the fuel to settle downward freely, the ashes being concentrated at the junction of the sloping sides, from which they are readily removed. For securing a free delivery of fuel the magazine is enlarged gradua-lly, the bottom-plate thereof being-much thicker at the front or upper end than at the rear or lower end. rlhe fresh fuel is delivered to the fire laterally in a line at right angles to the grate, although the movement of the fuel is in a line parallelwith the grate. D denotes the grate, which is inclined downward and forward beyond the line of the back plate h, so that the lire-pot proper, which contains the burning fuel, is V-shaped.

The grate D is ot' novel construction, in that it is composed of a number of bars, t', which project from a solid plate, k, and is provided at each side with a rack-gear, as at l, and ontside thereof with edges, as at m, which occupy lateral grooves n', as clearly illustrated in Figs. 5 and G. This grate is moved up and down by a shaft with pinions n', also shown in Fig. 6, and the crank D', shown in Fig. 1. This crank is provided with a dial-plate having notches and plainly inscribed to show the position of the grate, and a catch-pawl,where by the grate may he adjusted in any desired position. When fully elevated the entire bottom ot' the lire-pot will be an open grate-surface, and in proportion as the grate is lowered will the grate-surface be diminished by the presence of the solid plate k, which is capable of wholly closing the bottom of the firepot. The draft-dooro at the front of the stove opens to the ash-pit, and a register-valve in said door admits of reducing the draft to a minimum, while the door fully opened will result in full draft. l

It will be seen that my adjustable grate not only regulates the quantity of air supplied to the tire, but it also properly proportions the quantity ot' fuel to be exposed to the air admitted, while, by the usual methods of controlling draft,`t-he body of fuel exposed remains the same, whether much or little air is admitted. It will also be seen that no fresh fuel is ever thrown upon the surface ofthe burning coal, which will, therefore, Linder all circumstances, afford a good broiling-surface.

rlhe gases emanating from the adjacent heated fuel are brought into immediate contact with the bright burning coal, and are promptly consumed, instead ot' being wasted, as is the casewhen fresh coal is put upon the top surf'ace of a lire and the gases escape to the smokeiiue. In Figs. 2 and 3 the grate is shown to be about one-quarter open, and in Fig. 7 the grate is shown to be fully opened.

A grate constructed in accordance with my invention has great practical value for use in stoves and heaters ot' all classes, and in all fuel-burning apparatus.

It will also be readily seen that the grate# unites at each side with the side plates.l A

single length of nieta-l may be einployerhwliich will require but one joint at the two connecting ends of tlie sheet, thus reducing to a minimum the liability of gases in the oven. The oven-wallsp constitute the'sides of a duct, q, which surrounds the oven on top, bottom, and both ends. The interior duct g has three openings,ioneiof which, as at 9', is an entrance communicating with the combustion chamber.

Another, as at s, is an exit communicating .the stove, thence downward to the bottom,

thence to the front, and communica-tes with the smoke-pipe, as at u', beneath the ash-pit. rlhe ducts g and u are separated by plates or partitions which extend to each ofthe side plates. At. the rear of the stove, in the duct u, is aheatin'g-coil, as at iz, for connection.

with suitable supply pipe and tauk. For clearing the duct q from soot, &c., a valved opening is provided below the grate which communicates with the asli-pit, into which `the soot may be drawn by means of a lioesliapcd scraper or a shovel.

' F denotes the sniokcpipe, which is located at tlie'front ot' the stove, and communicates therewith near the bottom, as at u1, the terminus of duct 1l, and also near the top of the stove, as shown in dotted Y lines at u2, which communicates with the space between the side wall of the tire-pot and the side plate ot' the stove. The 'upper openingu2 is provided with adamper.

Gr denotes a vapor-pan or water-reservoir for charging the air with vapor as it passes through the heating-chz-imber beneath the stove. A funnel-sliaped opening or feeding aperture, as at w, is provided at the rear of the stovefor supplyingl water to the reservoir, and a trap-plate, w', projects downward at that point into a recess formed in the bottom of the pan, to prevent the escape of the heated air andthe entr-alice of fumes of the kitchentto the air chamber, even after the water in the main portion of the pan has been evaporated, while affording suiiieieiit space below it for the entrance of water.

It will be seen that the Water-pan is so lo! cated that the water is taken up by air which is only partially' heated, and to such a degree as would be ordinarily desirable in an apartment. For instance, under ordinary circiinistances the air in the portion of the chamber containing the pan would be about 700 or 750 Fahrenheit, and only a quantity ot' water due to that temperature would be taken up by the air. Although, in its passage through the heater, the temperature of the air will be raised, the water will remain therein, and

when the hot air is mixed with the air of the aparti'uent which is heated, the temperature of the heated air is reduced .to about the degree atwhich the water was taken up by it, and I thus secure a desired degree ot' humiditv.

rlhe top of the stove is provided with openings aiid covers, as usual. Two of these are located above the combustion-chamber, and are susceptible for use in broiling or boiling. The third opening is near the rear ot' the stove, and is only of use in boiling when the duct u is in service.

My stove is economical in the consumption of fuel, both by reason of the manner' in which the fire is controlled, and by ,reason ot' the manner in which the heat aforded is utilized. So far as relates to the tire, it will be seen that as the coal is burned all clinkers and stone will gravitate to the bottom ot' the V- shaped fire-pot, and that they can readily be removed without disturbing the lire by turning the crank until the grate-bars are removed froni junction with the lower end ot' the backplate sufficiently to afford a free open space.

The extent of, gratesurfaee is regulated at will by means ot' the crank. and it may be wholly closed, it' desired. The grate is not liable to be obstructed hy coal so as to p revent its movement, because the weight of the niass ot' coal is partially borne b v tlie back plate. The body ot' coal is so exposed to the grate that it will be burned only in proportion to the quantity of air admitted through the grate. D i The body1 of burning coal will alwaysbe oi greater area than the open grate-surface, and it will thus always afford good facilities for broiliiig.

rlhe burning fat from broilingoperations will fall upon the. back plate, and be consumed before reaching the. coal, while its smoke will be promptly disposed of. i

My stove is adapted to universal use, in tliat.,1s a summer stove, it can be operated so as to radiate a minimum ot' heat while used for cooking, and also when used as a winter stove it. can be opera-ted at full bla-st, and the heat therefrom utilized to a high degree.

When used, for instance, for boiling and broiling only, the volume ot' i'e may be suitably adjusted. The da'mper rl isl raised as in Fig. 2, and the damper at iin the smoke-pipe opened. Either the front or middle hole in the top plate ofthe stove may be used for boiling, and the middle one for broiling, the gases and heat passing to the smoke-pipe through opening` r, down at the rear ot' the back plate, along the duct at the frontof the oven, through op'cning` s.

If, in addition to broiling and boiling, the oven is required for baking, then the damper r1 is lowered, as in Fig. 3, and smoke-pipe damper at u2 still kept open. When thus adjusted the heat from the tire-chamber will enter duct q at t, and continue therein along the top, rear end, and bottom of the oven, thence to the smoke-pipe via u2.

If, in addition to its full cooking capacities,A it is desired that the stove do service as a heater, then the smokepipe damper uz'is closed, and damper r1 raised, so as to leave entrance r to duct q open, in which case the heat from the tire-chamber will traverse the entire length Aof d uct q encircling the oven, enter the outer duct u at t, and proceed therein in contact with the water-coil and the radiating-sheet c ofthe hot-air chamber until, onaarriving at the front of the stove beneath the ash-pit, it enters the foot of the smoke-pipe at al.

For extensive service set ranges will be preferable to the port-able stove already described. A range embodying my improvements, as shown on Sheet 3, is well adapted for large families, hotels, Ste. Instead of side plates, brick-work is employed. The hot-air chamber H, the interior and exterior ducts q and u, and the fire-pot, are substantially the same as previously described. -The several parts of the range are designated by letters of reference as previouslyY employed in connection with the portable stove.

The water-heater c', here shown, is not a coil, as in the stove. Itis a rectangular chamber, pro'vided with Inetal spurs, which project into the exterior duct for the purpose of i absorbing the heat and imparting it to the water within the chamber. These spurs may be solid, or they may be short lengths ot' welded pipe attached to the chamber by weldjoints. When pipe is thus used, each piece should be inclined upward, so as to obviate the collection of sediment therein as far as possible.

A damper, at r2, is shown in Fig. 7, which is not employed in the stove previously described.

It will vbe seen that at the rear of the heater, above the Waterchamber, the heatingsheet between the exterior duct and the airheating chamber, is extended horizontally from the rear toward the front of the stove so as to afford a more extended heating-surface. NVhen the rear ofthe top plate ofthe stove is not required, the dumpers r1 and fr2v are both raised, in which case the draft from the lirepot passes down the front end of the oven heneath it, upward at the rear, and into the outer duct at damper r2, directly against the adjacent portion of thel heating-sheet, thence downward. asin the portable stove. When the oven is not required,A then both dam pers, r1 and r2, are horizontal, and the draft from the tire-pot proceeds directly beneath the top plate to the rear, and thence as before, in

which case. all the holes of the top plate will meantime be available for boiling, and the front holes for broiling. The heating-sheet will be Aextended on each side through the I brick-work, and auxiliary heating-sheets may be employed therewith, described in Let-l ters Patent issued to me on the 22d day of February, A. D. 1876.

It is to be distinctly' understood that I am well aware that stoves and heaters embodying a portion or all of the novel features of my invention may be largely varied in construction without departing from the spirit of my invention.

I claim as new and desire to secure by these Letters Patentl. In a combined cook-stove and heater, the combination ot' a lire-pot andan oven, with an air-heating chamber, two independent ducts, which comn'iunicate with each other, with the lire-pot, and with the smoke-pipe by independent passages, and have dampers for controlling the entrance to said ducts at the ijrcpot, and the exit from one ot' said ducts to the smoke-pipe, substantially as described, whereby the products of combustion may be conducted from the fire-pot to the smoke-pipe by way ot' one of said ducts, or both ot' them, as and for the purposes set forth.

2. In a cook-stove, the combination with a tire-pot and an oven, ot' an exterior and iuterior duct communicating' with each other and with the tire-pot and smoke-pipe, of a water-heating coil or chamber located in the exterior duct, subatantially as described,

whereby the absorption ot' heat by the coil' will neither alfect the tire forth.

A nre-pot having a V-shaped tire-bed, with a solid back, and having an inclined grate in front, which can be moved to and from the bottom edge of the solid back, substantially as described, and for the purposes specilied.

4. A solid grate-plate, provided with gratebars which extend longitudinally from the plate, in combination with a tire-pot, and arranged to be moved across the lower end ot' the tire pot, substantially as described, whereby any desired degree ofgrate-surface may be employed,- or the bottom ofthe tire-pot wholly closed, as set forth.

5. The combimition, with a crank arranged to operate a slidinggrate-plate, ot' a dial-plate, substantially as described, for enabling the ready and accurate adjustment ot' the grate surface, as s'et forth.v

6. rlhe combination, with an inclined sliding-grate, and a crank for.operating the same, of a stop-pawl arranged to hold the crank and nor the oven, as set grate in any desired position, substantially as of the bottom o the pan, substantially as de! described. scribed, whereby the 'pn-n is readily supplied 7. The combina-tion, with the air-heating vwith water, and the fumes ofthe kitchen prechamber in a cooking and air-heating stove, vented from entering` the'air-cbamber.

0f u vapor-pan, provided with a waterefeeding RUDOLF EICKEMEYER. aperture, and a. recess in the. bottom, guarded Witnesses: t

by it tmp-plate which extends downward into R. SCHELLHAAS,

the recess t0 a point below the main portion GEORGE NAN. 

